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Annotation of loncom/html/adm/jsMath/jsMath-old-browsers.js, revision 1.2

1.1       albertel    1: /*
                      2:  *  jsMath-old-browsers.js
                      3:  *  
                      4:  *  Part of the jsMath package for mathematics on the web.
                      5:  *
                      6:  *  This file makes changes needed by older versions of some browsers
                      7:  *
                      8:  *  ---------------------------------------------------------------------
                      9:  *
                     10:  *  Copyright 2004-2006 by Davide P. Cervone
                     11:  * 
                     12:  *  Licensed under the Apache License, Version 2.0 (the "License");
                     13:  *  you may not use this file except in compliance with the License.
                     14:  *  You may obtain a copy of the License at
                     15:  * 
                     16:  *      http://www.apache.org/licenses/LICENSE-2.0
                     17:  * 
                     18:  *  Unless required by applicable law or agreed to in writing, software
                     19:  *  distributed under the License is distributed on an "AS IS" BASIS,
                     20:  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
                     21:  *  See the License for the specific language governing permissions and
                     22:  *  limitations under the License.
                     23:  */
                     24: 
                     25: jsMath.Add(jsMath.HTML,{
                     26:   /*
                     27:    *  Use the blank GIF image for spacing and rules
                     28:    */
                     29:   Blank: function (w,h,d,isRule) {
                     30:     var style = '';
                     31:     if (isRule) {
                     32:       if (h*jsMath.em < 1.5) {h = '1px'} else {h = jsMath.HTML.Em(h)}
                     33:       style = 'border-top:'+h+' solid;'; h = 0;
                     34:     }
                     35:     if (d == null) {d = 0}
                     36:     style += 'width:'+this.Em(w)+'; height:'+this.Em(h+d)+';';
                     37:     if (d) {style += 'vertical-align:'+this.Em(-d)}
                     38:     return '<img src="'+jsMath.blank+'" style="'+style+'" />';
                     39:   }
                     40: });
                     41: 
                     42: if (jsMath.browser == 'Konqueror') {
                     43:   
                     44:   jsMath.Package(jsMath.Box,{Remeasured: function() {return this}});
                     45: 
                     46:   jsMath.Add(jsMath.HTML,{
                     47:     Spacer: function (w) {
                     48:       if (w == 0) {return ''};
                     49:       return '<span style="margin-left:'+this.Em(w-jsMath.Browser.spaceWidth)+'">'
                     50:              + '&nbsp;</span>';
                     51:     }
                     52:   });
                     53: 
                     54:   jsMath.Browser.spaceWidth = this.EmBoxFor('&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;').w/5;
                     55: 
                     56: }
                     57: 
                     58: jsMath.styles['.typeset .spacer'] = '';